National Dental Examining Board of Canada (NDEB) Practice Exam 2026 - Free NDEB Practice Questions and Study Guide

Question: 1 / 400

The best time to begin interceptive orthodontic treatment for a patient with skeletal class II is...

Right before the adult teeth erupt

Just after the pre-pubertal growth spurt

Several months prior to the pre-pubertal growth spurt

It is suggested to begin interceptive orthodontic treatment for a patient with skeletal class II several months prior to the pre-pubertal growth spurt because at this time, the skeletal and dental growth is still active and can be influenced by the treatment. Beginning treatment right before the adult teeth erupt (option A) may not allow enough time for proper correction, while starting after the pre-pubertal growth spurt (option B) is less effective. Starting after all permanent teeth have erupted (option D) may also limit the effectiveness of treatment. Therefore, option C is the best time to begin interceptive orthodontic treatment.

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After all permanent teeth have erupted

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